Home / 39,786.62-54,906.96-21,883.02

Finding the Fourth Proportional to 39,786.62, 54,906.96 and 21,883.02

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Solution

The fourth proportional to 39,786.62, 54,906.96 and 21,883.02 is: 30,199.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,786.62 : 54,906.96 = 21,883.02 : x
  2. Step 2: Convert to fraction form
    39,786.62/54,906.96 = 21,883.02/x
  3. Step 3: Cross multiply
    39,786.62x = 54,906.96 × 21,883.02
  4. Step 4: Simplify right side
    39,786.62x = 1,201,530,103.82
  5. Step 5: Solve for x
    x = 1,201,530,103.82/39,786.62
  6. Step 6: Final answer
    x = 30,199.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.